K&N parts matching BMW 137178507320 air filter

The BMW 137178507320 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many BMW air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
William Till, Torrance, California
Great product. Have one in all my cars. Better performance and gas mileage.
Mathias Kik, Strasbourg, France
Très bon produit
Iram Zavala, Riverside, California
Great service.
33-2990 K&N 33-2990 Replacement Air Filter
List Price: $78.29
Your Price: $49.99